3 Strange Noises You Shouldn't Hear From Your Furnace
It's normal for your furnace to make noise as it operates. Note that most functional and well-serviced systems will run with a low humming noise. Moreover, if the heater is gas-powered, you might hear a tiny pop when it turns on. However, modern units have sound-dampening technology; hence you shouldn't hear the noise the system makes unless you're in the same room. Given this, loud and shocking noises from the system could spell trouble.